Air and gas pump or compressor and the like.



W. SGHEURMANN. AIR AND GAS PUMP OR COMPRESSOR AND THE'LIKE.

APPLICATION FILED OCT. 15, 1908.

Patented Sgpt. 7, 1909.

' WALTER scnn'nmmnn, or NEWARK-ON-TBENT, ENGLAND, assrenon To HENRY a.

v To all whomit may concemn UNITED s'rATEs PATENT oFrroE.

WQB-TH NGTO A O T ON O NEW AIR. AND ens PUMP on comrimsson AND T E LIKE.

Specificationof Letters mel Patented Sept-.7,

Application men October 15, 1908. Serial No. 457,765.

Be it known that I, WALTER SCHEURMANSI, a citizen of the Republic of Switzerland, residing at Newark-on-Trent, England, have invented certain new and useful Improvements-in Air and Gas Pumps or Compressors and the Like, fully described and represented in the following specification and the accompanying drawings, forminga part of the same. I

.The present invention relates to an ini' proved pump or compressor for gaseous fluids in which the fluid is pumped or compressed by means of jets of water or other liquid, the especial objecto'f the invention being to provldea simple and reliable pump, running at a high speed, occupying small space, and cheap of manufacture.

The invention consists in the employment of a system of ports or nozzles moved across one or more continuous jets of li uid, the inlets and outlets of the said ports eing so controlled that a portion of the liquid jet and a volume of air or gas are alternately admitted and discharged to and from the ports or nozzles without the discharge pressure being allowed to reenter the ports or nozzles after the compression of each volume of air or gas and after the liquid has left the ports or nozzles. a

-In constructing an air pump"operating with water according to the invention the ports or nozzles: are preferably arranged in.

a wheel adapted to turn orrotate in a casing. The ports or nozzles preferably extend from near the center outward to the periphcry of the wheel". In the casing are -provided air and water inlets leadingfito the "inner end of the. ports or nozzles of which there may be any convenient number. The

water is supplied under pressure and in passing outward ma be used as a means for rotating the whee but the wheel may be totated by other means and the pressure water enter used only for um m or compressin the. air. The inne en'd s 0% the ports or n zzles in the wheel alternately pass the air and water inlets so .that air and water alternately therein. The momentum of'the water compresses the air and discharges'itfflom the'oiuter ends of the ports or nozzles *with 5 the water-when air or gas.

the ports or nozzles arrive opposite the discharge outlet in the casing.

In case the apparatus is to beused as a compressor the discharge is into a tank closed to the atmosphere and large enough to allow of the air or gas and liquid sepa-v rating before the liquid is flowed off. When the apparatus is used as a vacuum pump or for exhausting air from an apartment or other exhausting purposes the tank may be open to the atmosphere so as to allow the. air or gas to escape. The apparatus may be used also as 'a condenser, the exhaust steam or other vapor entering at the inlet for the In the accompanym drawings forming a part of this specification, a.compress0r em bodying the invention in a' preferred form is illustrated, and this construction Wlll now be described in detail and the features-ferming the invention then specifically pointed out in the claims.

In the drawingsa-Figure 1 is an eleva-ltion of the compressor looking toward the inlet side. I Fig. 2 is a vertical section on the line 2 of Fig. 3. Fig; 3 is a vertical section on the line 3 of Fig. 1. Fig. 4 is a horizontal section on the line 4 of Fig. 1.

Referring to the drawings, A is' a, wheel mounted to rotate on'shaft 10, and having the vanes a forming between them the ports or nozzles b. The wheel rotates in a casin B the wall of which surrounding the whee closes the outer ends of the ports or nozzles b except at the discharge ort 0 through which the wheel discharges rom the outer ends of the ports or nozzlesib into the discharge chamber 0, from which the air passes oil through anair outlet (1, the hquld flowing oif through pipe The casing B 1s preferably cut away on the side of the'chs charge opening-from which the wheel approaches the opening to form the narrow passage 1, so as to open the outer ends of theports or nozzles b to the discharge befor th'e'ports or-nozzles reach thedischarge port 0., the air and water .then being forced through this narrow openin to the discharge port, before the 1 disc arge port is fully open to the ports or nozzles. As shown,

A, and the discharge pipe D arranged so' that the wheel is always liquid sealed.

- The ports or nozzles 6 take suction at their inner ends from liquid inlet chamber E, the wall 11 of which is formed to close the imier ends'of the por'ts or nozzles 6 except at the suction ,portfe extending through a suitable portion of he-innercircumference of the wheel. The;wheel takes suction from the air inlet chamber F, which is shown as open to the inner ends of the ports or nozzles 6 through its entire extent, although this may be varied if desired. Liquid inlet chamber E connects with the inlet nozzle G through :port 13, which nozzle G is preferably shaped 'asshown so as to change pressure into velocity, and the" air inlet F- connects through port 12 with the chamber or vessel to e evacuated or with the atmosphere if the machine be a compressor. The operation of the device will be understood from a-brief description, in connectionwith the above. y

The pressure liqnid'admitted through the inlet chamber E and porte to the inner ends of the ports or nozzles 12, and striking the 'curved vanes a, rotates the wheel A, so that .each passes successively the liquid and air inlets. The ports or nozzles I) receive pres sure liquid attheir inner ends as they pass the port e, and-this liquid or part of it is thrown out by momentum as the other ends of the orts ornozzles'pass the discharge port 0,-- eaving .a partial vacuum into which the air will rush as the inner ends of the ports or nozzles pass the partition between the liquidohamber and the airchamber. As the wheel with this air filling or partially filling the ports or nozzles reaches the discharge port 0, or, in the construction shown,

the cut away portion 1 of the casing B, the

. pressure liquid enters the inner ends of the ports and by momentum and the pressure the liquid is thrown outward and upward through the discharge opening, compressing and carrying with it the air in the ports. or

any suitab e size and open to the atmosphere.

In the construction shown,-the series of ports or nozzles arearran ed as a-wheel, and

the wheel is driven by e pressureil qmdh It will be understood, however, that-theanrangement ofthe orts 'ornozzles may bevaried, and that t e wheel may be driven by means other than the pressure of the liquid, the latter being then used only for compressing and discharging the air.

What is claimed is 1. In an air pump or the like, the combination with a series of moving ports, of air and pressure liquid inlets across which the ports pass successively to openthe air and liquid inlets alternately to the ports, a discharge passage passed by the ports, and stationary walls co-acting with the moving ports to open the ports for the discharge of air and liquid from the ports and to close the ports to the discharge.

2. In an air pump or the like, the combination of a series of moving ports, of air and pressure liquid inlets across which the suction ends of the ports passsuccessively to open the air and liquid inlets alternately .to the ports, a discharge passage passed by the outer ends of the ports, and stationary walls co-acting with the ports to open the ports for the discharge of air and liquid from the ports and to close the ports to the discharge.

3. In an air pump or the like, the combination with a series of rotating ports, of air and pressure liquid inlets across which the ports pass successively to open the air and liquid inlets alternately to the ports, a discharge passage passed by the ports, and stationary walls c'o-acting with thev moving 'portsto open the ports for the discharge of air and liquidand to close the ports to the discharge.

4. In an air ump or the like, the combination with a w eel havin -aseries of vanes forming ports between t em, of air and pressure liquid inlets across which the vanes and ports pass successively to open the air and liquid inlets alternately to the ports, the vanes and pressure liquid inlets beingarranged to rotate the wheel by the pressure liquid, a discharge passa e passed by the ports, and stationary wal s co-actin with the moving'ports to open the orts or the discharge of air and liquid an .to close the ports to the discharge.

5. The combination with wheel A, having vanes forming ports 6 between them, of

liquid inlet chamber E and air inlet chamber F opening successively to the inner ends of the ports and a stationary wall surrounding the wheel and having discharge port c for the outer ends of the ports I), substantially as described.

6. The combination with wheel A, havin vanes forming ports 6 between them, 0

' liquid inlet chamber E and air inlet chamber- F opening successively to the inner ends of the ports, a stationary wall surrounding the wheel and having dischargle ort 0 above the wheel for the ports I), an ischarge champassage 1 connecting the ports I; with the discharge ports as the ports b approach the discharge port, substantially as described.

In testimony whereof I hilve-hereunto set her C above the discharge. port having air and liquid outlets d, D, substantially as described. i L

7. The combination with wheel A,having 5 vanes forming ports 1) between them, of my hand, in the presence of two subscribing 15 liquid inlet chamber. E and air inlet chain- Wituesses. ber F opening successively to the inner ends \VALTER SCHEURMANN. of the ports, a stationary Wall surroundn'lg \Vitnesses:

the Wheel and having discharge port 0 for E. \V. Hns'rnn, 10 the outcrends of the ports I), and narrow J. ANDERSON. 

